Cigarette or cigar with filter



Jan. 14, 1958 H. BURBlG 2,819,720

CIGARETTE OR CIGAR WITH FILTER Filed July 1, 1955 Jig-"L 3/ cyz uvaemxuawn/@004; COATED'P/IPEQ 5/2/1053 INVENTOR. f/e/vev fives/6 United StatesPatent CIGARETTE 0R CIGAR WITH FILTER Henry Burbig, Bronx, N. Y.

Application July 1, 1955, Serial No. 519,555

3 Claims. (Cl. 131-10) This invention relates to a novel form of filtercontaining cigar or cigarette.

Among the objects of the invention is to provide a cigarette or cigarequipped with a filter which is more effective.

Among other objects of the invention is to provide a cigar or cigarettewith a filter tip which also cools the smoke.

These objects and others ancillary thereto are obtained by providing afilter portion for a cigar or cigarette which is made up of two distinctfilters separated by an air space. The two filters are separated by aring device which may comprise an additional absorptive region.

In the specification and claims it will be understood that the termcigarette includes similar smoking articles such as cigars.

The invention both as to its organization and its method of operationtogether with additional objects and advantages thereof will best beunderstood from the following description of specific embodimentsthereof when read in connection with the accompanying drawing in whichFig. 1 is a longitudinal cross-sectional view of one form of theinvention.

Fig. 2 is a longitudinal cross sectional view of a modified form of theinvention.

Fig. 3 is an exploded view of the modification shown in Fig. 2.

Although the drawing shows a cigarette it will be readily understoodthat substantially the same filter construction applies also to cigarand similar preformed tobacco products. The cigarette shown has thewrapper and the tobacco filler or pack 13 made up of a suitable smokingmixture which comprises the greater part of the cigar or cigarette.

The wrapper 10 has an end 11 which is to be lighted and end 12 whichforms the mouthpiece. On the inside of the mouthpiece end is the firstfilter 20, an air space 30 and a second filter 21. The air space 30 isdefined and reinforced by an internal ring element 31. This ring 31 maybe coated with an absorptive composition such as charcoal. The charcoalmay be applied to the ring or the ring may be formed from some organicmaterial such as cellulose fibers and charred on the inside and/ oroutside surface.

In the device according to Fig. 1 air is admitted into the space 30 bymeans of the small orifice 32 in the wrapper 10 and a similar smallorifice 33 in the ring 31. In the drawing these orifices are shown asdisplaced from each other although they can coincide, if desired. Asimilar 2,819,720 Patented Jan. 14, 1958 ice efiect can be obtainedwithout orifice 33 since leakage can be depended upon to admit air intothe space 30 from orifice 32.

In the operation of the device of Fig. l the smoke from the end 11 whenlighted, travels through the tobacco 13 and then passes through filter21 to air space 30. In the air space 30 a turbulance due to the relativeincrease in cross sectional space between filter 21 and space 30 is setup and the smoke is mixed together and/or with the air from opening 32,passes over the absorptive charcoal surfaces of the ring 31, and thenpasses through the second filter 20 whereupon it is again filteredbefore passing into the users mouth and lungs.

The cigarette of Figs. 2 and 3 is substantially the same as that of Fig.1 except that in the case of Figs. 2 and 3 the air holes 32 and 33 areomitted. Except for the mixing with air, substantially the same effecttakes place with the cigarette of Figs. 2 and 3 as with the cigarette ofFig. 1. As shown in Fig. 3 the ring element 31 and the generalconfiguration of the cigarette is round but the cigarette may be oval inshape or other similar shape, if desired. The outside diameter of thering 30, the filter elements 20 and 21 and the tobacco filler pack 13 issubstantially the same.

The features and principles underlying the invention described above inconnection with specific exemplifications will suggest to those skilledin the art many other modifications thereof. It is accordingly desiredthat the appended claims shall not be limited to any specific feature ordetails thereof.

I claim:

1. In a cigarette of the type having a tobacco containing portion and adistinct filter portion adjacent the mouthpiece thereof with the filterportion and tobacco containing portion covered by the same wrapper, theimproved construction of the filter portion comprising a first,longitudinally extending filter element filling and supporting thewrapper from the inside thereof, a second filter element spaced from thefirst filter element filling and supporting the Wrapper from the insidethereof, and ring means on the inside of said wrapper defining an airspace separating the first and second filter elements, said ring meanssupporting the wrapper from the inside thereof, said wrapper containinga single small orifice in the por-- tion thereof surrounding the ringmeans.

2. The cigarette as set forth in claim 1 in which the ring comprises acharcoal coating.

3. The cigarette as claimed in claim 1 wherein the ring means contains asmall orifice in alignment with the orifice of the wrapper.

References Cited in the file of this patent UNITED STATES PATENTS701,613 Raecke June 3, 1902 1,828,044 Hickey Oct. 20, 1931 1,983,926Zirmer Dec. 11, 1934 2,085,293 Bufiington June 29, 1937 2,269,995 TraneJan. 13, 1942 FOREIGN PATENTS 189,399 Switzerland May 1, 1937 368,162Great Britain Mar. 3, 1932 377,147 Great Britain July 21, 1932

